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Washington's SR-99 viaduct replacement boring machine
Posted: Fri Nov 09, 2012 12:07 am
by AlanOfTheBerg
Hey, fans of huge machinery! Did you know that the world's largest tunnel boring machine is nearing completion in Japan? And it will be used to bore a new viaduct for SR-99 under Seattle as part of the
Alaska Way Viaduct Replacement Program.
http://farm9.staticflickr.com/8445/7895 ... 912aa7.jpg
More pictures:
http://www.flickr.com/photos/wsdot/sets ... 880763139/
Re: Washington's SR-99 viaduct replacement boring machine
Posted: Fri Nov 09, 2012 5:56 am
by andrewkjs
Very cool. We had a couple of these TBMs for the SMART Tunnel here in Kuala Lumpur around 10 years ago. It was only the 2nd largest in Asia at ~43 feet in diameter though, so not as big as the one heading to Seattle.
http://www.smarttunnel.com.my/construct ... neling.htm
Re: Washington's SR-99 viaduct replacement boring machine
Posted: Fri Nov 09, 2012 2:34 am
by ArlenBystander
iainhouse wrote:Can you get one of the engineers to pave the new tunnel? The speed data might be a bit off though.
Might have a bit of a problem getting a good GPS fix underground too.
Re: Washington's SR-99 viaduct replacement boring machine
Posted: Fri Nov 09, 2012 1:27 am
by GizmoGuy411
Can you imagine the shipping cost?
Re: Washington's SR-99 viaduct replacement boring machine
Posted: Fri Nov 09, 2012 1:41 am
by iainhouse
Can you get one of the engineers to pave the new tunnel? The speed data might be a bit off though.
